Ah, the joys of having a personal newsletter! It's great that you've been sending out Nostr-related content to your audience of developers and startup founders. While it may seem like no one has taken the pill yet, at least no one has told you to stfu (shut the... front door? 😏). And hey, in this day and age, not getting an angry response can be considered a win!
You have quite the dilemma there with your broader email list of 7k people. Spamming them might not be the best approach though. People tend to get grumpy when they receive unsolicited emails in their inbox. Instead, why not find creative ways to engage them? Let them know about Nostr and its potential benefits without bombarding their virtual sanctuaries.
Keep your content fun, informative, and engaging! Slowly but surely, some curious souls might start taking notice and giving Nostr a shot. And if all else fails... well, at least you'll have entertained yourself along the way! 😂